Former U.S. President Ronald Reagan and First Lady Nancy Reagan share a moment in this undated file photo. The couple celebrated their 50th wedding anniversary on March 4th 2002. (Photo courtesy Ronald Reagan Presidental Library/Getty Images)

American actor Ronald Reagan and his wife Nancy Reagan gaze at one another across a table, circa 1952. (Photo by Hulton Archive/Getty Images)

American actor Ronald Reagan and his wife Nancy Reagan sit at a restaurant table, looking at a brochure at the premiere party for the film, 'Moby Dick,' directed by John Huston, 1956. (Photo by Hulton Archive/Getty Images)

Actor Ronald Reagan and his wife, actress Nancy Davis, discuss the merits of a tractor on their 305 acre ranch in the Santa Monica, California, mountains on April 8, 1965. He raises thoroughbreds on the ranch, selling them for five to six thousand dollars. He?s also on the board of directors of International Holding Corp. and coastal Life Insurance Co. Should he accept the challenge to run for governor of California, and win, it would mean a financial setback for him. ?That?s something I would have to face,? he says. (AP Photo)

Nancy Reagan blows kisses to the demonstrators for her husband, California Gov. Ronald Reagan, after he was nominated to be the Republican Party's presidential candidate, Aug. 7, 1968, at the GOP convention session in Miami Beach. (AP Photo)

Taca, the pet husky of Ronald Reagan and his wife Nancy, was the center of attention as they relaxed on the lawn outside their ranch home near Santa Barbara, Calif., Monday, July 27, 1976. (AP Photo/Walter Zeboski)

U.S. President Ronald Reagan rides horses with his wife First Lady Nancy Reagan.

This May 1981 file photo shows then US president Ronald Reagan (R) and his wife Nancy (L) bidding farewell to the 1979 Nobel Peace Prize Mother Teresa (C) at the White House in Washington, DC. Reagan, an icon to Republicans and a hero to those Americans who remember him as the man who brought down the "Evil Empire," died 05 June 2004 at the age of 93 at his home in Bel Air in southern California, US media reported. (AFP/Getty Images)

US President Ronald Reagan (C) salutes beside his wife Nancy Reagan after being sworn in as 40th President of the United States by Chief Justice Warren Burger during inaugural ceremony, on January 20, 1981 at the Capitol in Washington, DC. At right is vice-president George W. Bush. (AFP/Getty Images)

US President Ronald Reagan (C) salutes beside his wife Nancy Reagan after being sworn in as 40th President of the United States by Chief Justice Warren Burger during inaugural ceremony, on January 20, 1981 at the Capitol in Washington, DC. (AFP/Getty Images)

Prince Charles (left) talking to President Ronald Reagan and his wife Nancy at a private dinner in the White House, Washington DC, May 2nd 1981. (Photo by Keystone/Hulton Archive/Getty Images)

US music legend Ray Charles (C) joins US President Ronald Reagan and First Lady Nancy Reagan on the podium after singing "America The Beautiful" to GOP delegates in Dallas in August, 1984. (DON RYPKA/AFP/Getty Images)

This photo taken on April 3, 1981, shows President Reagan with Mrs Nancy Reagan inside George Washington University Hospital four days after the assassination attempt on him, in Washington, D.C.. Reagan was hit by one of six shots fired by John Hinckley, who also seriously injured press secretary James Brady (just behind the car). Reagan was hit in the chest and was hospitalized for 12 days. Hinckley was acquitted 21 June 1982 after a jury found him mentally unstable. (MIKE EVENS/AFP/Getty Images)

US President Ronald Reagan (C) is sworn in as 40th President of the United States by Chief Justice Warren Burger (R) beside his wife Nancy Reagan (C) during inaugural ceremony, on January 21, 1985 in the Capitol Rotunda in Washington DC. (AFP/Getty Images)

US President Ronald Reagan and his wife Nancy welcome Princess Diana and her husband Prince Charles. The Royal Couple arrived in Washington, D.C. for a three-day visit before traveling on to Florida November 9, 1985. (DON RYPKA/AFP/Getty Images)

US President Ronald Reagan (l) raises his arms in the air with presidential hopeful George Bush (2nd-r) after President Reagan announced endorsement for Bush as the next president of the United States in Washington DC, November 5,1988. At left, First Lady Nancy Reagan, at right, Barbara Bush. (MIKE SARGENT/AFP/Getty Images)

First Lady Nancy Reagan is shown standing in the Red Room of the White House in this March 4, 1981 photo. (AP Photo/HO)

Michael Jackson stands with President and Nancy Reagan May 14, 1984 on the south lawn of the White House prior to receiving an award from the president for his contribution to the drunk driving awareness program. (AP Photo/Scott Stewart)

U.S. President Ronald Reagan and First Lady Nancy Reagan celebrate their 36th wedding anniversary March 4, 1988 at a surprise party at the White House. Former President Reagan turned 90 years-old February 6, 2001 at his home in California. (Photo by Mary-Anne Fackelman-Miner/White House/Newsmakers)

President Ronald Reagan cuts in on singer Frank Sinatra, who dances with first lady Nancy Reagan during a party in the East Room of the White House on February 6, 1981. Charles Wick, a friend of the Reagan's, walks by at right. (AP Photo/White House photo, Mike Evans)

US President Ronald Reagan watches as First Lady Nancy Reagan touches the polished stone of the Vietnam War Memorial in Washington, D.C. during a Veterans Day visit November 11, 1988 The President, making his last official appearance at a Veterans Day ceremony, said that young Americans should "never be sent again to fight and die unless we are prepared to let them win". Reagan was US president from 1980 to 1988. ( JEROME DELAY/AFP/Getty Images)

President Ronald Reagan and his wife Nancy walk through the graves at Normandy American Cemetery in Omaha Beach, France on Wednesday, June 6, 1984 as they arrived to attend the 40th anniversary of the allied invasion 1944. In foreground is the grave of Theodore Roosevelt Jr., who died in the Normandy 1944. (AP Photo/Edmonds)

Former US President Ronald Reagan (2nd-L), his wife Nancy (L), former Soviet President Mikhail Gorbachev (C) and his wife Raisa (R) chat May 3, 1992 in the front yard of the Reagan's ranch in Santa Barbara. (MIKE NELSON/AFP/Getty Images)

Former U.S. President Ronald Reagan kisses former First Lady Nancy Reagan in this undated file photo. The couple celebrated their 50th wedding anniversary on March 4th 2002. (Photo courtesy Ronald Reagan Presidental Library/Getty Images)

With an assist from his wife Nancy, former U.S. President Ronald Reagan (C) blows out the candles on his cake February 6, 1993 as he celebrates his 82nd birthday. At left is former British Prime Minister Margaret Thatcher. The event took place at the Ronald Reagan Presidential Library and Center for Public Affairs. (HAL GARB/AFP/Getty Images)

Former U.S. President Ronald Reagan dances with former First Lady Nancy Reagan in this undated file photo. The couple celebrated their 50th wedding anniversary on March 4th, 2002. (Photo courtesy Ronald Reagan Presidental Library/Getty Images)

James Brady, former press secretary to US President Ronald Reagan (L), is greeted by former US First Lady Nancy Reagan (R) May 5 in Washington DC. Mrs. Reagan attended the gala to mark the dedication of the Ronald Reagan Building and International Trade Center. Brady was seriously injured in the 1981 assassination attempt on President Reagan. Standing in the background at center is Brady's wife Sarah. (TIM SLOAN/AFP/Getty Images)

Former US First Lady Nancy Reagan (L) and Reverend Billy Graham embrace during the gala dedication of the Ronald Reagan Building and International Trade Center May 5 in Washinghton, DC. Reagan, 87, was not present at the ceremony and has not appeared in public since he announced in 1994 that he had Alzheiner's disease. (TIM SLOAN/AFP/Getty Images)

Former First Lady Nancy Reagan is introduced during the second day of the Republican National Convention, August 1, 2000 in Philadelphia. (Photo by Mark Wilson/Newsmakers)

Former US First Lady Nancy Reagan (L) along with US President George W. Bush (R) react after she christen the USS Ronald Reagan (CVN-76) aircraft carrier 04 March, 2001, in Newport News, Virginia. The ship named after the former president is christened on the 49th anniversary of their marriage and it is the last Nimitz-class nuclear aircraft carrier being built. (STEPHEN JAFFE/AFP/Getty Images)

U.S. President George W. Bush and Chairman and Chief Executive Officer of Newport News Shipbuilding, William P. Frick watch as former First Lady, Nancy Reagan christens the U.S. Navy's newest nuclear powered aircraft carrier "Ronald Reagan" (CVN 76) March 4, 2001at Newport News Shipbuilding in Newport News, VA. The ship is named in honor of the 40th President of the United States of America, Ronald Wilson Reagan. (Photo courtesy of U.S. Navy/Johnny Bivera/Newsmakers)

Former President Ronald Reagan Gets A Kiss From His Wife Nancy On The Occasion Of His 89Th Birthday February 6, 2000 At Their Home In Bel Air, California. Reagan Turned 90 Years-Old February 6, 2001 While At Home Recovering From A Broken Hip. (Photo By Getty Images)

Nancy Reagan(R) is comforted by the Rev. Robert Wenning besides the casket bearing the remains of her husband former US president Ronald Reagan, during a private ceremony at the Ronald Reagan Presidential Library in Simi Valley, California, June 7, 2004. After the private ceremony the remains will be available for public viewing for the next 30 hours before transportation to Washington DC for a state funeral, 11 June at the US Capitol. (BRYAN CHAN/AFP/Getty Images)

In this handout image provided by the White House, U.S. President George W. Bush and first lady Laura Bush (R) greet former first lady Nancy Reagan at Blair House June 10, 2004 in Washington, DC. Former U.S. President Ronald Reagan's funeral service will be held in Washington, DC June 11 at the National Cathedral. (Photo by Eric Draper/White House via Getty Images)

Former first lady Nancy Reagan (R) is escorted by an unidentified person as U.S. Vice President Dick Cheney (L) looks on prior to the state funeral of former U.S. President Ronald Reagan on Capitol Hill June 9, 2004 in Washington, DC. Reagan's body will lie in state for public viewing throughout the night. (Photo by Rick McKay-Pool/Getty Images)

Nancy Reagan kisses the casket containing the remains of her husband, US ex-president Ronald Reagan, at the Capitol rotunda shortly before he was taken away for a state funeral ceremony at the National Cathedral in Washington, DC, June 11, 2004. (ROBERTO SCHMIDT/AFP/Getty Images)

Former First Lady Nancy Reagan and Commander U.S. Naval Air Force Pacific, Vice Adm. Michael D. Malone greet sailors on the flight deck after her arrival aboard USS Ronald Reagan (CVN 76) on July 23, 2004 in San Diego, California. Mrs. Reagan is making her first public appearance since the passing of President Ronald W. Reagan. (Photo by Charles Edwards/US Navy via Getty Images)

California Governor Arnold Schwarzenegger sits next to former First Lady Nancy Reagan, who hosted the major GOP Presidential Candidates, as they participated in the first Republican debate held at the Reagan Library on May 3, 2007 in Simi Valley, California. The debate included ten Republican Party presidential candidates. (Photo by Jamie Rector/Getty Images)

Former first lady Nancy Reagan and President Barack Obama arrive for a bill signing in the Diplomatic Reception Room of the White House June 2, 2009 in Washington, DC. President Barack Obama signed the "Ronald Reagan Centennial Commission Act" which is intended to honor the former US President Ronald Reagan on his 100th birthday in 2011. (Photo by Brendan Smialowski/Getty Images)

Former U.S. first lady Nancy Reagan (R) is embraced by Speaker of the House Nancy Pelosi during a ceremony unveiling a statue of former President Ronald Reagan in the Rotunda of the U.S. Capitol June 3, 2009 in Washington, DC. The statue will become part of the National Statuary Hall Collection. Also pictured at left is former U.S. Treasury Secretary James Baker. (Photo by Win McNamee/Getty Images)

Former U.S. first lady Nancy Reagan (L) wipes away a tear after the unveiling of a statue of former President Ronald Reagan in the Rotunda of the U.S. Capitol June 3, 2009 in Washington, DC. Also pictured (L-R) are House Minority Leader Rep. John Boehner (R-OH) (2nd L) and Senate Majority Leader Harry Reid. (Photo by Win McNamee/Getty Images)

Former first lady Nancy Reagan and former Secretary of State James Baker (2nd L) attend a birthday celebration held in honor of Ronald Reagan at the Ronald Reagan Presidential Library February 6, 2011 in Simi Valley, California. Ronald Reagan, the 40th President of the United States, would have been 100 years old on Sunday. (Photo by Eric Thayer/Getty Images)

Former first lady Nancy Reagan wishes her husband happy birthday during a celebration held in honor of Ronald Reagan at the Ronald Reagan Presidential Library February 6, 2011 in Simi Valley, California. Ronald Reagan, the 40th President of the United States, would have been 100 years old on Sunday. (Photo by Eric Thayer/Getty Images)

Nancy Reagan, former first lady, dies at 94 in California [PHOTOS]

Nancy Reagan, the helpmate, backstage adviser and fierce protector of Ronald Reagan in his journey from actor to president — and finally during his 10-year battle with Alzheimer's disease — has died. She was 94.
The former first lady died Sunday at her home in the Bel-Air section of Los Angeles of congestive heart failure, assistant Allison Borio told The Associated Press.